Dillinger Opia E Bike.
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Dillinger Opia E Bike.
Postby leovendramini » Wed Jul 26, 2017 12:02 pm
- uart
- Posts: 3212
- Joined: Sat Jan 02, 2016 9:15 pm
- Location: Newcastle
Re: Dillinger Opia E Bike.
Postby uart » Thu Jul 27, 2017 1:05 pm
But does it actually work like that? I assume you mean that you are trying to get the lowest profile from the pedal axis to the top of the pedal. I might be wrong, but I would have thought that simply lowered the effective center of your pedalling circle without changing effective crank length one bit.leovendramini wrote:As an `old timer`who loves to tweak for the sake of getting that extra efficiency ,I am replacing the standard 32mm folding pedals with the thinnest I can get to increase the length of purchase.It should be like replacing 170mm cranks to 180mm ones.
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Re: Dillinger Opia E Bike.
Postby leovendramini » Thu Jul 27, 2017 5:53 pm
-
- Posts: 1808
- Joined: Tue Sep 01, 2009 12:21 am
- Location: Perth, Western Australia
- Contact:
Re: Dillinger Opia E Bike.
Postby eldavo » Thu Jul 27, 2017 6:23 pm
Link with specs for the rest of folk convenience:
http://dillengerelectricbikes.com.au/el ... enger.html
The larger pedals will be more comfortable, but you could put an elephant foot length pedal on, the lever is still the length from the force applied at the spindle, i.e. crank length. Longer pedal with force applied at longer than spindle length, will rotate the pedal and not apply the torque to the crank.
The other thing to remember is the motor torque will eclipse the difference of a 10mm crank length placebo. It doesn't take away from it being a happy user experience for you.
What I like about the frame battery is when they are removable.
Review Question: have you removed the battery and handled it, is that something convenient to do for mid-ride locked up bike charging, and connectors that would last being removed daily?
cheers
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Re: Dillinger Opia E Bike.
Postby leovendramini » Thu Jul 27, 2017 8:08 pm
Yes,the battery is key removable so if the bike is in a shed without power it can be taken inside and charged there.
-
- Posts: 1808
- Joined: Tue Sep 01, 2009 12:21 am
- Location: Perth, Western Australia
- Contact:
Re: Dillinger Opia E Bike.
Postby eldavo » Fri Jul 28, 2017 1:14 am
You are wanting longer crank length without replacing cranks, achieved by thinner pedals?
I myself can't imagine the significant difference of efficiency, what kind of number are you expecting? No reasons needed for tinkering though, just wondering if I am missing the secret sauce to success.
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Re: Dillinger Opia E Bike.
Postby leovendramini » Fri Jul 28, 2017 10:17 am
- find_bruce
- Moderator
- Posts: 10598
- Joined: Mon May 09, 2011 8:42 pm
- Location: Sydney
Re: Dillinger Opia E Bike.
Postby find_bruce » Fri Jul 28, 2017 8:39 pm
Same issue as with angled cranks, whether they were curved
L shaped
or even z-shaped
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Re: Dillinger Opia E Bike.
Postby leovendramini » Sat Jul 29, 2017 12:12 am
- uart
- Posts: 3212
- Joined: Sat Jan 02, 2016 9:15 pm
- Location: Newcastle
Re: Dillinger Opia E Bike.
Postby uart » Sat Jul 29, 2017 1:44 am
Because there is no shortage of gullible people with plenty of money.leovendramini wrote:Seriously nonplussed.There are some very expensive cranks in those photos,why would they be produced if there was no benefit to them?
Please listen to what everyone is trying to tell you. Pedal height will not change your effective crank length.
-
- Posts: 1808
- Joined: Tue Sep 01, 2009 12:21 am
- Location: Perth, Western Australia
- Contact:
Re: Dillinger Opia E Bike.
Postby eldavo » Sat Jul 29, 2017 3:51 am
In terms of efficiency and power with respect to muscle fatigue, seat height is probably the most significant adjustment I've got wrong, and possibly old timers riding (struggling) with it because nobody ever showed them, and who would want to tell them to suck eggs?
I remember sitting on the saddle set lower for stops not stepping forward over the top tube as a young adult on my first own MTB, because I came from a small road frame that was my Dad's commuter before that, and had same seat height as he had the bike, slammed low despite me being taller.
More recently I sold a seatpost rack to a 55+ guy new to town who rode his bike to pick it up. Not enough seatpost was exposed to be able to fit the 50mm clamp, but he had plenty to go. I saw him ride so suggested plenty more leg muscles could be used, adjusted a few times while he tested it. Instead of struggling on the small hills, the guy was ecstatic to suddenly have unlocked this new world of power and ease.
Straying off topic but on ebike ergonomics, it reminds I've been on a semi-recumbent e-bike in the "early days" relatively and passed a rider uphill who at a lights stoppage caught up and told me my seat height was too low. I thought it ironic but I checked it anyway, turns out it was probably his traditional perception not noticing the finer points of it, and earlier days of ebikes when people would comment and ask about it, some get noses out of joint and play "MGIF" leap-frogging making risky manouevres.
7 years on for that model of ebike I had, they're not a rare sight and don't get a mention from strangers. Time for some stilts and L cranks. Does anyone have a bridge for sale too?
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Re: Dillinger Opia E Bike.
Postby leovendramini » Sat Jul 29, 2017 11:44 am
As an experiment to prove to myself and any doubters that thinner pedals do in fact improve the effectiveness of the stroke ,I placed a 100mm block on top of the pedal and placed my foot upon it.The result?...you guessed it,my knee came up that much higher which was the equivalent of lowering the height of the seat and thereby reducing pushing power.Thin Pedals Rule.
-
- Posts: 1808
- Joined: Tue Sep 01, 2009 12:21 am
- Location: Perth, Western Australia
- Contact:
Re: Dillinger Opia E Bike.
Postby eldavo » Sat Jul 29, 2017 2:19 pm
Credit where it's due though, I haven't seen anyone talk about pedal thickness in bike fit. My only suspicion is that it's like scientists not talking about the flat Earth anymore.
- uart
- Posts: 3212
- Joined: Sat Jan 02, 2016 9:15 pm
- Location: Newcastle
Re: Dillinger Opia E Bike.
Postby uart » Sat Jul 29, 2017 3:29 pm
leovendramini wrote:The result?...you guessed it,my knee came up that much higher which was the equivalent of lowering the height of the seat and thereby reducing pushing power.Thin Pedals Rule.
Exactly. The pedal thickness raises the centre of the pedalling circle but has no effect on the effective crank length. Obviously leovendramini has to raise the saddle height to compensate or the entire experiment is completely pointless.eldavo wrote:To prove that, should you be raising your seat height 100mm to eliminate the variables other than pedal height?
When we get into ridiculous pedal thickness like the OP's 100mm wood block example however, one advantage of thinner pedals does come to mind. Any torque that you try to apply to the crank where the line of force does not pass through the pedal spindle, will require more counter-torque in your ankle with very thick pedals. For example if you were trying to apply some torque at the top or bottom of the stroke by pushing forward or pulling back with your feet, then a thick pedal requires more counter-torque through your ankle.
This point is moot with normal thickness pedals and normal pedalling action however, as the fore-aft cleat adjustment should be set to make sure that centre of force does indeed go through the pedal spindle in any case.
-
- Posts: 45
- Joined: Mon Feb 02, 2015 7:02 am
Re: Dillinger Opia E Bike.
Postby leovendramini » Mon Oct 16, 2017 3:32 pm
- General Australian Cycling Topics
- Info / announcements
- Buying a bike / parts
- General Cycling Discussion
- The Bike Shed
- Cycling Health
- Cycling Safety and Advocacy
- Women's Cycling
- Bike & Gear Reviews
- Cycling Trade
- Stolen Bikes
- Bicycle FAQs
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- Serious Biking
- Audax / Randonneuring
- Retro biking
- Commuting
- MTB
- Recumbents
- Fixed Gear/ Single Speed
- Track
- Electric Bicycles
- Cyclocross and Gravel Grinding
- Dragsters / Lowriders / Cruisers
- Children's Bikes
- Cargo Bikes and Utility Cycling
- Road Racing
- Road Biking
- Training
- Time Trial
- Triathlon
- International and National Tours and Events
- Cycle Touring
- Touring Australia
- Touring Overseas
- Touring Bikes and Equipment
- Australia
- Western Australia
- New South Wales
- Queensland
- South Australia
- Victoria
- ACT
- Tasmania
- Northern Territory
- Country & Regional
Who is online
Users browsing this forum: No registered users
- All times are UTC+10:00
- Top
- Delete cookies
About the Australian Cycling Forums
The Australian Cycling Forums is a welcoming community where you can ask questions and talk about the type of bikes and cycling topics you like.
Bicycles Network Australia
Forum Information
Connect with BNA
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.